Effects of apolipoprotein B on lifespan and risks of major diseases including type 2 diabetes: a mendelian randomisation analysis using outcomes in first-degree relatives oleh Tom G Richardson, PhD, Qin Wang, PhD, Eleanor Sanderson, PhD, Anubha Mahajan, PhD, Mark I McCarthy, ProfMD, Timothy M Frayling, ProfPhD, Mika Ala-Korpela, ProfPhD, Allan Sniderman, ProfMD, George Davey Smith, ProfFRS, Michael V Holmes, MD